Freestanding Foils of NbSe2 and Carbon Nanotubes for Efficient Electromagnetic Shielding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927521" target="_blank" >RIV/60461373:22310/23:43927521 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/full/10.1021/acsanm.2c05119" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsanm.2c05119</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsanm.2c05119" target="_blank" >10.1021/acsanm.2c05119</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Freestanding Foils of NbSe2 and Carbon Nanotubes for Efficient Electromagnetic Shielding

Popis výsledku v původním jazyce

The presence of electromagnetic radiation is becoming an ongoing topic due to possible interference issues as well as potential health risks. Therefore, the development of electromagnetic interference (EMI) shielding materials is of utmost importance. Herein, a composite material for EMI shielding based on metallic niobium diselenide (NbSe2) and single-walled carbon nanotubes (CNTs) with a low loading of 3 wt % is reported. The NbSe2 + 3CNTs composite was prepared using a high shear-force homogenizer followed by vacuum filtration to obtain a freestanding foil with a thickness of 219 ± 22 μm. The EMI shielding effectiveness (SE) of the NbSe2 + 3CNTs composite was also compared with its building blocks. The EMI SEs at 12.4 GHz were 31.4, 48.5, and 62.7 dB for pure NbSe2, pure CNTs, and the NbSe2 + 3CNTs composite, respectively. Such excellent performance of our composite material is attributed to a synergistic effect between the NbSe2 and CNTs, where the CNTs not only increase the conductivity of the composite but also form an interconnecting network between the NbSe2 sheets, thus forming a 3D network with abundant sites for EM wave attenuation. It is the first study on the EMI shielding performance of a TMD other than MoS2-based material. © 2023 American Chemical Society.

Název v anglickém jazyce

Freestanding Foils of NbSe2 and Carbon Nanotubes for Efficient Electromagnetic Shielding

Popis výsledku anglicky

The presence of electromagnetic radiation is becoming an ongoing topic due to possible interference issues as well as potential health risks. Therefore, the development of electromagnetic interference (EMI) shielding materials is of utmost importance. Herein, a composite material for EMI shielding based on metallic niobium diselenide (NbSe2) and single-walled carbon nanotubes (CNTs) with a low loading of 3 wt % is reported. The NbSe2 + 3CNTs composite was prepared using a high shear-force homogenizer followed by vacuum filtration to obtain a freestanding foil with a thickness of 219 ± 22 μm. The EMI shielding effectiveness (SE) of the NbSe2 + 3CNTs composite was also compared with its building blocks. The EMI SEs at 12.4 GHz were 31.4, 48.5, and 62.7 dB for pure NbSe2, pure CNTs, and the NbSe2 + 3CNTs composite, respectively. Such excellent performance of our composite material is attributed to a synergistic effect between the NbSe2 and CNTs, where the CNTs not only increase the conductivity of the composite but also form an interconnecting network between the NbSe2 sheets, thus forming a 3D network with abundant sites for EM wave attenuation. It is the first study on the EMI shielding performance of a TMD other than MoS2-based material. © 2023 American Chemical Society.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GC20-16124J" target="_blank" >GC20-16124J: Dvojdimenzionální vrstevnaté dichalkogenidy přechodných kovů / nanostrukturované uhlíkové kompozity pro aplikace na elektrochemické uchovávání energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Applied Nano Materials

ISSN

2574-0970

e-ISSN

2574-0970

Svazek periodika

6

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

3333-3343

Kód UT WoS článku

000936775200001

EID výsledku v databázi Scopus

2-s2.0-85148945600